Add --no-commit-id option for git-diff-tree, use it in gitk

This patch introduces -no-commit-id option for git-diff-tree, which
suppresses commit ID output.

[jc: dropped gitk part for now.]

Signed-off-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>

diff --git a/Documentation/git-diff-tree.txt b/Documentation/git-diff-tree.txt
index f57c8d0..9a2947e 100644 (file)
--- a/Documentation/git-diff-tree.txt
+++ b/Documentation/git-diff-tree.txt
@@ -8,7 +8,7 @@ git-diff-tree - Compares the content and mode of blobs found via two tree object
 
 SYNOPSIS
 --------
-'git-diff-tree' [--stdin] [-m] [-s] [-v] [--pretty] [-t] [-r] [--root] [<common diff options>] <tree-ish> [<tree-ish>] [<path>...]
+'git-diff-tree' [--stdin] [-m] [-s] [-v] [--no-commit-id] [--pretty] [-t] [-r] [--root] [<common diff options>] <tree-ish> [<tree-ish>] [<path>...]
 
 DESCRIPTION
 -----------
@@ -74,6 +74,10 @@ separated with a single space are given.
        commit message.  Without "=<style>", it defaults to
        medium.
 
+--no-commit-id::
+       git-diff-tree outputs a line with the commit ID when
+       applicable.  This flag suppressed the commit ID output.
+
 
 Limiting Output
 ---------------

diff --git a/diff-tree.c b/diff-tree.c
index ed323d8..09d16ad 100644 (file)
--- a/diff-tree.c
+++ b/diff-tree.c
@@ -3,6 +3,7 @@
 #include "commit.h"
 
 static int show_root_diff = 0;
+static int no_commit_id = 0;
 static int verbose_header = 0;
 static int ignore_merges = 1;
 static int read_stdin = 0;
@@ -29,7 +30,8 @@ static int call_diff_flush(void)
                return 0;
        }
        if (header) {
-               printf("%s%c", header, diff_options.line_termination);
+               if (!no_commit_id)
+                       printf("%s%c", header, diff_options.line_termination);
                header = NULL;
        }
        diff_flush(&diff_options);
@@ -231,6 +233,10 @@ int main(int argc, const char **argv)
                        show_root_diff = 1;
                        continue;
                }
+               if (!strcmp(arg, "--no-commit-id")) {
+                       no_commit_id = 1;
+                       continue;
+               }
                usage(diff_tree_usage);
        }
        if (diff_options.output_format == DIFF_FORMAT_PATCH)